The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-040-3654, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-040-3654 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Flange Diameter | 0.340 INCHES NOMINAL IN |
| Length | 0.940 INCHES NOMINAL IN |
| Flange Thickness | 0.050 INCHES NOMINAL IN |
| Groove Diameter | 0.133 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Groove Radius | 0.030 INCHES NOMINAL IN |
| Thread Length | 0.440 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Diameter | 0.250 INCHES NOMINAL IN |
| Cross-Sectional Shape | ROUND |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Reference | Meaning |
|---|---|
| 5340PL1067665 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 350586-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-040-3654 is a Standoff,threaded,spacing, classified under FSC 5340, Hardware, Commercial. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5935-01-187-6178. Verify interchangeability with system specifications before substitution.
Key specifications for 5340-01-040-3654: Flange Diameter: 0.340 INCHES NOMINAL IN; Length: 0.940 INCHES NOMINAL IN; Flange Thickness: 0.050 INCHES NOMINAL IN; Groove Diameter: 0.133 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. 8 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.